Who is Abdel Fattah al-Sisi?

Unofficial results in this vote are expected in the hours after polls close on Tuesday night, but the official figures will not be released until June 5.

After the overthrow of Hosni Mubarak in 2011 raised hopes of new freedoms, the vote means Egypt will likely revert to rule by men from the military after Mr Sisi toppled the country's first freely elected leader, Mohamed Morsi of the Muslim Brotherhood.